Although Amazon has nothing even with its used vendors, I found one at Fletcher Free Library in Vermont, acting as an agent for another library. $20 + $4 shipping. I hope this listing is still valid! I bought it.
Since the copyright has long expired unless renewed - I'll check - I will make this available on CD for a small fee for those interested.
(BTW, forget Google. I use
www.clusty.com , a meta search engine. Many, many more results for most searches and it, well, clusters them by topic!)